The average of Sohan’s marks in 6 subjects is 74. If his average in the five subjects other than Science is 70, how many marks did he obtain in Science?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 94
The total marks are the average multiplied by the number of subjects. Science marks are the total for 6 subjects minus the total for the other 5.
Total marks in 6 subjects \(=6\times74=444\)
Total marks in the 5 subjects other than Science \(=5\times70=350\)
Marks in Science \(=444-350=94\)
Sohan obtained 94 marks in Science.